The U.S. aircraft register, updated daily
Type certificates · aircraft · small airplane · current

Type certificate 4A1

Held today by Anderson Greenwood & Company. It covers 1 model. Last revised October 2, 1950 (revision 0). 7 approved modifications build on it.

Models under this certificate 1

14

The data sheet on the FAA's site: the approved engines and propellers, weights, speeds and limits for each model.

FAA orders on these designs 0 · newest first

None in the current files.

Approved modifications 7 · companies holding the most

Champion Aerospace LLC 2Unison Industires 1Swift Fuels LLC 1Hartzell Engine Technologies, LLC 1Alcor LLC 1Aircraft & Rotorcraft Products (Arp) INC 1

Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 5, 2026. Connections as data: /graph/certificate/4A1.json.